That's strange, it has the same problem even after restarting? If yes then there's two other ways:
1. Use a Ubuntu or SUSE live cd and boot your system. Plug in your pen drive and copy paste everything to it.
2. Boot into SUSE with your pendrive plugged in
Press Ctrl+Alt+F1, login and give the following commands in sequence
sudo mkdir /mnt/share
sudo fdisk -l
Check the output, you will usually see your pendrive as /dev/sdb1
sudo mount /dev/sdb1 /mnt/share
sudo cp -rv /home/yourusername/* /mnt/share
After everything copies
umount /mnt/share
Eject pen drive